CN108884818A - A kind of metering device - Google Patents
A kind of metering device Download PDFInfo
- Publication number
- CN108884818A CN108884818A CN201680078600.7A CN201680078600A CN108884818A CN 108884818 A CN108884818 A CN 108884818A CN 201680078600 A CN201680078600 A CN 201680078600A CN 108884818 A CN108884818 A CN 108884818A
- Authority
- CN
- China
- Prior art keywords
- diameter
- pressure
- regulating valve
- ingate
- inner hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/102—Disc valves
- F04B53/103—Flat-annular type disc valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
- Reciprocating Pumps (AREA)
Abstract
A kind of metering device, for by the pump of controlled power by combustible material, especially propenal aldehyde acetal is from combustible material source or the container equipped with combustible material is dosed in vacuum pipeline (38), pump is the positive displacement pump (26) driven by compressd-air motor (28), and pressure holding and regulating valve, nondimensional delivery head H/Ho [mWS/1mWS] and nondimensional transfer rate Q/Qo [m are provided between positive displacement pump (26) and vacuum pipeline (38)3/h/1m3/ h] { H/Ho }={ C1* (Q/Qo) } is calculated as follows0。333, wherein H=pressure is kept and the hydraulic Ho=1mWSC1=pressure of regulating valve inlet is kept and the constant Q=hydraulic flow Qo=1m of regulating valve3/h。
Description
Technical field
The present invention relates to metering device technical field more particularly to a kind of metering devices, for by pumping combustible material
The combustible material of source or storage container, especially propenal aldehyde acetal are dosed in vacuum pipeline, wherein the pump power of pump is
Controllable.
Background technique
2237373 A1 of EP be related to it is a kind of for handle include methacrylaldehyde ballast water equipment, the equipment will connect
Onto the main ballast water pipeline of ballast drainage facility, which includes：It is supplied with the reaction of Propenal derivative, catalyst acid and water
Device device, for producing aqueous acrolein solution；Main ballast water pipeline is connected to for shunting the branched pipe of ballast water partial discharge
Line；It is connected to the mixing arrangement of branch line and the acrolein solution supply line from reactor assembly, is come from for diluting
Aqueous acrolein solution in reactor assembly；And for the aqueous acrolein solution from mixing arrangement to be supplied to main ballast pipe
The feeding mechanism of line.2237373 A1 of EP discloses how to generate the aqueous solution of propenal aldehyde acetal on the plate of container to meet
It is claimed below：Propenal aldehyde acetal is a kind of with low-flash highly flammable material, in addition water and catalyst, which passes through
Vacuum pipeline enters the engine room of ship, to sterilize the ballast water on ship there.
202011032903 U1 of DE be related to it is a kind of for mixing and the mixing of metering liquid chemicals and metering device,
Including the circulating pump with suction nozzle and discharge nozzle, the volume content of conduit coil is designed so that metering enters the device
Chemical substance has enough residence times for chemical reaction, and Pitot tube will be from conduit coil pipe while forming pumping point
Annular flow out exports to gauge line from the outlet of conduit coil pipe, which is arranged in the suction side of Pitot tube and circulating pump
Between, and including at least two metering valves and downcomer, the downcomer be connected to Pitot tube and have by will mix and based on
Amount device is connected to the vacuum flange of vacuum plant.It is shown specifically in 202011032903 U1 of DE, in annular hybrid reaction
In the continuous device of device form, how how propenal aldehyde acetal pass through with aqueous catalyst solution reaction and both substances
Two metering valves are continuously pumped to be put into vacuum pipeline in this equipment.
Metering pump is usually driven by threephase motor, and speed is by Frequency Converter Control.Frequency converter must be positioned to compare to lean on
Otherwise nearly three-phase motor has control oscillation.In addition, when using metering pump in potential explosive atmosphere, such as in conveying liquid
In the container panel for changing gas, it is forbidden to use electrically operated device.
Summary of the invention
The object of the present invention is to provide a kind of metering devices, are used for gauge height combustible material, especially methacrylaldehyde and contract
Aldehyde, and can be used safely in hazardous environment.
The present invention is to provide a kind of metering device for solving the technical solution of the above technical problem, for by controllable
The pump of power is by combustible material, especially propenal aldehyde acetal from combustible material source or the container equipped with combustible material is dosed to
In vacuum pipeline, pump is the positive displacement pump driven by compressd-air motor, and is arranged between positive displacement pump and vacuum pipeline
There are pressure holding and regulating valve, nondimensional delivery head H/Ho [mWS/1mWS] and nondimensional transfer rate Q/Qo [m3/h/
1m3/ h] it is calculated as follows
{ H/Ho }={ C1* (Q/Qo) }0。333, wherein
H=pressure keeps hydraulic with regulating valve inlet
Ho=1mWS
C1=pressure is kept and the constant of regulating valve
Q=hydraulic flow
Qo=1m3/h。
Driving device of the electric motor as metering pump is replaced by using compressd-air motor, according to DE
Device disclosed in 202011032903 U1 can be used in explosive atmosphere, i.e., on the deck of the ship of carry liquefied gas.Lead to
The compressed-air line of compressd-air motor can be arbitrarily long, i.e., compressed air source and its control device can be arranged in danger
Dangerous region exterior, such as in the enging cabin of ship.But due to lower than 2bar low-pressure air pressure under can not
The sliding avoided, torque and the compressed air pressure of compressd-air motor are nonlinear.In terms of control technology, and it can be used for
When the frequency converter of threephase motor is compared, this technology has its defect.It is being used as the metering pump driven by compressd-air motor
Positive displacement pump metering pipeline in using pressure keep and regulating valve, it was thus unexpectedly found that the stroke quantity of metering pump is just
Than in the compressed air pressure of air compressor motor, to make metering can be reliably by being driven by air compressor motor
Positive displacement pump operate, and control is simplified, to creatively solve the defect.
According to preferred embodiment, in metering device of the invention, pressure is kept and regulating valve includes：With upper side
Cylinder valve shell, the ingate with diameter d1, ingate be located at upper side center, and on the downside of cylinder valve shell
Face is provided with inner hole, and the diameter d2 of inner hole is greater than the diameter d1 of ingate and forms the outlet of pressure holding and regulating valve, closes
The diameter d3 for closing the upper member of piston is less than the diameter d2 of inner hole and is greater than the diameter d1 of ingate；It is made of elastomer
Circular seal disc, what be can move freely is being closed between piston and interior sealing surface, which is formed in
On the medial surface of valve chest between inner hole and ingate；And a compressed spring, the compressed spring are supported in inner hole simultaneously
By closure piston and seal disc against interior sealing surface.
Pressure is kept and regulating valve is very insensitive to the presence of the suspended material in the medium flowed through.Pressure of the invention is protected
Holding has self-cleaning effect with control valve, because, since all moving parts can be moved freely axially and transversely, so outstanding
The deposition of floating object matter or accumulation are always flushed away with fluid.Therefore, if by pump pumped (conveying) medium discharge insoluble in polymerization
Solid is then kept using pressure of the invention and regulating valve is especially advantageous.
According to another preferred embodiment, in metering device of the invention, the diameter of seal disc is greater than the diameter of ingate
D1 adds the radical length of interior sealing surface, and is less than the diameter d3 of the upper member of closure piston.Seal disc these
Size is it is advantageously ensured that seal disc all covers ingate under any circumstance, regardless of lateral position of the seal disc relative to ingate
Set how.
According to another preferred embodiment, in metering device of the invention, the upper side of valve chest and downside are formed
For flat seal surface.Therefore, when installing pressure holding and regulating valve, be conducive to for upper side and downside being used as against even
The sealing surfaces of relay part.
According to the description for combining embodiment shown in the drawings, further advantage of the invention, feature and possible
Using will become obvious.
In the description, term used in claims and Figure of description and relevant drawings label are listed and are being joined
Examine label list.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 shows the sectional view of the pressure holding and regulating valve for metering device of the invention.
The cross-sectional view installed in manufacturing works with regulating valve is kept Fig. 2 shows the pressure in Fig. 1.
Fig. 3 is the schematic diagram of the metering device for combustible material, especially methacrylaldehyde of the invention；With
Fig. 4 is to show the compressed air pressure on the compressd-air motor of metering device and the positive sky by positive displacement pump driving
The curve graph of the stroke ratio of gas motor.
Specific embodiment
Firstly, pressure holding and regulating valve will be described with reference to Fig. 1 and Fig. 2.As illustrated in fig. 1 and 2, pressure holding and regulating valve
In metering device for vacuum distillation plant of the invention.
According to Fig. 1, pressure of the invention is kept and regulating valve has cylindrical metal valve chest 1, has upper side 2
Cylinder valve shell 1, the ingate 3 with diameter d1, ingate 3 is located at the center of upper side 2, in valve chest 1 includes
The diameter d2 in hole 5, inner hole 5 is greater than the diameter of ingate 3 and forms the outlet of pressure holding and regulating valve.Valve chest 1 has
Downside 4 is designed as flat surfaces as upper side 2 and therefore can use during the holding of installation pressure and regulating valve
Be connected the sealing surfaces of component.
In valve chest 1, between inner hole 5 and ingate 3 is as the transition piece between inner hole 5 and ingate 3
Interior sealing surface 6, interior sealing surface 6 be cylindrical plane.Circular seal disc 7 is made of elastomer, and can be free
It is movably arranged between closure piston 8 and interior sealing surface 6.As shown in Figure 1, the cylindrical upper section portion of the sealing piston 8
The diameter d3 of part 9 is less than the diameter of inner hole 5, but is greater than the diameter d1 of ingate 3.
The diameter that the diameter of seal disc 7 is greater than ingate adds the radial extension of sealing surfaces 6.In addition, seal disc 7 is straight
Diameter is less than the diameter d3 of the upper member 9 of sealing piston 8.When seal disc 7 is pressed to sealing surfaces 6 by closure piston 8, seal disc
Ingate 3 is closed in 7 side.Being closed piston 8 has circular edge 10.The cylindrical lower portion part 11 for being closed piston 8 has
There is the diameter d4 smaller than the internal diameter of compressed spring 12, compressed spring 12 presses to sealing surfaces 6 for piston 8 is closed by seal disc 7.
Compressed spring 12 has clear passage gap between circle circle.The outer diameter of compressed spring 12 is less than the diameter of inner hole 5
d2.Compressed spring 12 is carried by one or more clamping rings 13.Clamping ring 13 is mounted on inner hole 5 with h6 matching piece (h6-fit)
In, inner hole 5 has H7 matching piece (H7-fit).Sai Ge (Seeger) ring 14 being clamped in groove 15 keeps clamping by compression
Ring 13 presses in compressed spring 12.In the mounted state, compressed spring 12 is being sealed by the prestressing force that closure piston 8 applies
Applied force on disk 7, ingate 3 is closed in a manner of hydraulic seal as a result,.
According to following formula I, the compressing force of compressed spring 12 is calculated as spring constant multiplied by reduction length (mm)：
As can be seen that can achieve required spring tension by several free variables.The liquid flowed at ingate 3
The hydraulic elastic force for making seal disc 7 overcome compressed spring 12 of body and leave the plane where interior sealing surface 6, and enter
The liquid flow of ingate 3 can flow through closure piston 8, by be closed piston 8 upper member and inner hole 5 between gap 16 with
And the gap between the circle circle of compressed spring 12 enters inner hole 5.
Preferably, the cross-sectional area in gap 16 is corresponding with the cross-sectional area of ingate 3.Keep in pressure of the invention and
During the operation of regulating valve, only compressed spring 12 and closure piston 8 are in movement.Wherein, seal disc 7 is maintained at closure 8 He of piston
Between interior sealing surface 6.
Shown in such as testing, compressed spring 12, is closed piston 8 and seal disc 7 can move radially and freely in inner hole 5
It is centrally positioned in inner hole 5.Therefore, pressure of the invention is kept and regulating valve preferably uses container at sea, wherein indulging
Reference axis executes tumbling motion by expansion (swell).
As shown in Fig. 2, pressure is kept and regulating valve can be mounted on two DIN flanges by flat sealed pad 18,18'
Between 17,17'.It, during operation, can be by the way that two be cut in the case where 17 17' of flange is the part of two shut-off valve
Only valve is locked in above and below the pressure holding and regulating valve of Fig. 1 and unclamps bolt 19 easily to remove pressure of the invention
Power is kept and regulating valve.The pressure holding and regulating valve disconnected can be dismantled by removing plug lattice ring 14, and in a short time
Replace another compressed spring 12 or other clamping ring 13.
Metering device includes the storage container 20 for storing the liquid 21 to be conveyed of such as propenal aldehyde acetal.Storage is held
Liquid water horizontal line in device 20 can be low liquid level as shown at 22, or the high liquid level as shown in 23.In storage container 20
Bottom is connected with suction line 24, to be connected to the positive displacement pump 26 of metering pump.Positive displacement pump 26 is via mechanical links 27
It is connect with compressd-air motor 28.Compressd-air motor 28 is connected to compressed-air line 29 and has exhaust pipe 31.
Pressure piping 33 directly by flange 17 be connected to pressure keep and regulating valve 35 ingate 2, pressure keep and
The inner hole 5 of regulating valve 35 is open at the flange 17 of metering pipeline 36.By open shut-off valve 37, the medium of pumping (such as
Propenal aldehyde acetal) pass through the arrival vacuum pipeline 38 of positive displacement pump 26.
Positive displacement pump (the positive displacement pump) 26 has 128 strokes per minute, per hour
27 liters of capacity.In vacuum pipeline 38, there is the vacuum of -9.5mWS (water rice meters of water).At 27 liter per hour
Flow velocity under, the pressure of pressure gauge in pressure line 33 instruction 25mWS.Compressed air pressure in compressed-air line 29 is
77kPa。
It is well known that due to inevitably being slided under the low pressure lower than 2bar, the torque and pressure of compressd-air motor
Contracting air pressure is nonlinear.Ensure the stroke speed of compressed air pressure and positive displacement pump therefore, it is necessary to additional measure
Expectation between rate is linear.
Experiment it has been shown that the pressure in Fig. 1 keep and regulating valve in, hydrostatic pressure at ingate 3 and pass through pressure
Keeping the relationship between the flow of regulating valve is that the ratio of two pressure is equal to the cube root of two volume flow rate ratios.
If H/Ho [mWS/1mWS] indicates the hydrostatic pressure of Dimensionless Form, Q/Qo [m3/h/1m3/ h] indicate dimensionless
The waterpower flow of form, then following formula is suitable for the invention pressure holding and regulating valve：
{ H/Ho }={ C1* (Q/Qo) }0。333Formula II
Wherein,
H=pressure keeps hydraulic with regulating valve inlet
Ho=1mWS
C1=pressure is kept and the constant of regulating valve
Q=hydraulic flow
Qo=1m3/h。
By using pressure holding and regulating valve, the compressed air pressure and positive displacement pump on compressd-air motor 28 are obtained
Expectation between 26 stroke quantity is linear.
It has been proved that providing different compressed air pressures to the compressd-air motor 28 of the metering device of Fig. 3, can survey
Measure the respective stroke number of positive displacement pump 26.As a result as shown in the curve graph of Fig. 4.The punching per minute of ordinate expression positive displacement pump 26
Journey, abscissa indicate the compressed air pressure on compressd-air motor 28.From fig. 4, it can be seen that using Fig. 1 pressure keep and
Regulating valve 35 provides linear stroke/pressure curve, to control stroke frequency by the method for controlling compressed air, this is
To the completely lossless substitution converter of electronic frequency.
Pressure holding shown in FIG. 1 and regulating valve are used in test, they have following parameter：
Valve chest 1：Material number 1.2424,27 millimeters of outer diameter, 32 millimeters of height；
Ingate 3：Diameter 8mm；
Inner hole 5：Diameter 19mm；
It is closed piston 8：Material number 1.2424, upper member diameter 17.2mm；
Seal disc 7：Viton；Outer diameter 16mm；The high 2mm of plate；
Compressed spring 12：Material number 1.2330, outer diameter 17.25mm, line thickness 1.25mm；
Clamping ring 13：It is material number 1.2424,3,2 millimeters high；
Flange 17：Material number 1.2771, two sides DN 15.
List of reference signs
1 valve chest
2 upper sides
3 ingates
4 downsides
5 inner holes
6 interior sealing surfaces
7 seal discs
8 closure pistons
The upper member of 9 closure pistons
10 edges
The lower member of 11 closure pistons
12 compressed springs
13 clamping rings
14 plug lattice rings
The groove of 15 plug lattice rings
The gap of 16 annulars
17 flanges
17' flange
18 flat sealed pads
18' flat sealed pad
19 bolts
19' bolt
20 storage containers
21 liquid to be conveyed
22 low liquid levels
23 high liquid levels
24 suction lines
Flow direction in 25 suction lines
26 positive displacement pumps
27 mechanical links
28 compressd-air motors
29 compressed-air lines
30 compressed air inlets flow direction
31 exhaust outlets
32 exhaust flow directions
33 pressure pipings
Flow direction in 34 pressure lines
35 pressure are kept and regulating valve
36 metering pipelines
37 shut-off valves
38 vacuum pipelines
Claims (4)
1. a kind of metering device, for the pump by controlled power by combustible material, especially propenal aldehyde acetal from combustible material
Source or container equipped with combustible material are dosed in vacuum pipeline (38), which is characterized in that the pump is by compressed air
The positive displacement pump (26) of motor (28) driving, and be provided between positive displacement pump (26) and vacuum pipeline (38) pressure keep with
Regulating valve (35), the pressure keep and the nondimensional delivery head H/Ho [mWS/1mWS] of regulating valve (35) with it is nondimensional
Transfer rate Q/Qo [m3/h/1m3/ h] it is calculated as follows
{ H/Ho }={ C1* (Q/Qo) }0。333, wherein
H=pressure keeps hydraulic with regulating valve inlet
Ho=1mWS
C1=pressure is kept and the constant of regulating valve
Q=hydraulic flow
Qo=1m3/h。
2. metering device according to claim 1, which is characterized in that pressure is kept and regulating valve (35) include：
Cylinder valve shell (1) with upper side (2), the ingate (3) with diameter d1, the ingate (3) are located at upper
At the center of side (2), and be provided with inner hole (5) in the downside of cylinder valve shell (1) (4), the diameter d2 of inner hole (5)
Greater than ingate (3) diameter d1 and formed pressure keep and regulating valve (35) outlet, be closed piston (8) upper member
(9) diameter d3 is less than the diameter d2 of inner hole (5) and is greater than the diameter d1 of ingate (3)；
Closure piston (8) and interior sealing surface is freely movably arranged in the circular seal disk (7) being made of elastomer
(6) between, which is formed on the medial surface of the valve chest (1) between inner hole (5) and ingate (3)；
And a compressed spring (12), the compressed spring (12) be supported in inner hole (5) and by be closed it is piston (8) and close
Closing disk (7) is against interior sealing surface (6).
3. metering device according to claim 2, which is characterized in that the diameter of the seal disc (7) is greater than the entrance
The diameter d1 in hole (3) adds the radical length of the interior sealing surface (6), and is less than the upper member of closure piston (8)
(9) diameter d3.
4. metering device according to claim 2, which is characterized in that gap (16) are formed in closure piston (8)
Between the upper member (9) and the inner hole (5), the cross-sectional area of gap (16) and the cross-sectional area of the ingate (3)
It is corresponding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202015106101.3 | 2015-11-11 | ||
| DE202015106101.3U DE202015106101U1 (en) | 2015-11-11 | 2015-11-11 | metering |
| PCT/EP2016/077418 WO2017081242A1 (en) | 2015-11-11 | 2016-11-11 | Metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108884818A true CN108884818A (en) | 2018-11-23 |
Family
ID=55358870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680078600.7A Pending CN108884818A (en) | 2015-11-11 | 2016-11-11 | A kind of metering device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20180328351A1 (en) |
| EP (1) | EP3374634A1 (en) |
| CN (1) | CN108884818A (en) |
| DE (1) | DE202015106101U1 (en) |
| WO (1) | WO2017081242A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2724065C1 (en) * | 2019-11-29 | 2020-06-19 | Акционерное общество "Ярославский завод дизельной аппаратуры" | High-pressure fuel pump section |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278205A (en) * | 1978-04-28 | 1981-07-14 | S K M, Societe Anonyme | Constant flow rate fluid supply device, particularly for a spray gun |
| US5161571A (en) * | 1990-08-09 | 1992-11-10 | Masako Kiyohara | Check valve |
| US20090217988A1 (en) * | 2006-03-02 | 2009-09-03 | Global Valve Technology Limited | Dual seal valve |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2254209A (en) * | 1941-09-02 | Valve | ||
| US1800185A (en) * | 1928-09-06 | 1931-04-07 | Homer A Thrush | Pressure relief valve |
| US3782412A (en) * | 1972-05-11 | 1974-01-01 | Weatherland Co | Unbalanced poppet relief valve |
| US4140148A (en) * | 1976-11-18 | 1979-02-20 | The Coca-Cola Company | Pressure relief valve for product containers |
| US4543987A (en) * | 1984-04-27 | 1985-10-01 | Eaton Corporation | Relief valve |
| DE19743917A1 (en) * | 1997-10-02 | 1999-04-08 | Ecotec Ag Fuer Rationelle Tech | Liquid fuel or lubricant suction pump e.g. for fluid conduits, in machines or road vehicles |
| US6068022A (en) * | 1999-08-25 | 2000-05-30 | Schrader-Bridgeport International, Inc. | Jet pump with improved control valve and pressure relief valve therefore |
| DE10148960A1 (en) * | 2000-10-06 | 2002-04-11 | Luk Fahrzeug Hydraulik | Pressure relief valve has cylindrical valve component and on side facing sealing seat has suitable recess by means of which insert with base element for elastomer coating is fitted |
| US8085209B2 (en) | 2009-04-02 | 2011-12-27 | Viasat, Inc. | Sub-array polarization control using rotated dual polarized radiating elements |
| US9017560B2 (en) * | 2009-05-29 | 2015-04-28 | Holger Blum | Method and device for treating ballast water with acrolein |
| US9328836B2 (en) * | 2009-11-12 | 2016-05-03 | Schrader Electronics Ltd. | Pressure regulator valve seals, systems and methods |
| DE202011050903U1 (en) | 2011-08-04 | 2011-10-11 | Holger Blum | Mixing and dosing device for mixing and dosing of chemicals |
| DE102012222823A1 (en) * | 2012-06-28 | 2014-01-02 | Robert Bosch Gmbh | Piston fuel pump |
| DE102014212496A1 (en) * | 2014-06-27 | 2016-01-14 | Robert Bosch Gmbh | Exhaust valve arrangement of a pump element of a vehicle brake system |
-
2015
- 2015-11-11 DE DE202015106101.3U patent/DE202015106101U1/en not_active Expired - Lifetime
-
2016
- 2016-11-11 WO PCT/EP2016/077418 patent/WO2017081242A1/en active Application Filing
- 2016-11-11 CN CN201680078600.7A patent/CN108884818A/en active Pending
- 2016-11-11 EP EP16805733.9A patent/EP3374634A1/en not_active Withdrawn
- 2016-11-11 US US15/774,998 patent/US20180328351A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278205A (en) * | 1978-04-28 | 1981-07-14 | S K M, Societe Anonyme | Constant flow rate fluid supply device, particularly for a spray gun |
| US5161571A (en) * | 1990-08-09 | 1992-11-10 | Masako Kiyohara | Check valve |
| US20090217988A1 (en) * | 2006-03-02 | 2009-09-03 | Global Valve Technology Limited | Dual seal valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017081242A1 (en) | 2017-05-18 |
| DE202015106101U1 (en) | 2016-02-01 |
| US20180328351A1 (en) | 2018-11-15 |
| EP3374634A1 (en) | 2018-09-19 |
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Application publication date: 20181123 |
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